An old bone contains 80% of its original carbon-14. Use the half-life model to find the age of the bone. Find an equation equivalent toP (t) = A (one-half) Superscript StartFraction t Over 5,730 EndFraction A times P (t) = (one-half) Superscript StartFraction t Over 5,730 EndFraction 5,730 times P (t) = A (one-half) t StartFraction P (t) Over A EndFraction = (one-half) Superscript StartFraction 5 Over 5,370 EndFraction

Match the term with the corresponding definition. 1. mountains 2. geographic position 3. latitude 4. oceans 5. pressure 6. land vs. water a. affects temperature by influencing the seasonal range of solar intensity b. despite being at similar latitudes, continental locations have a larger seasonal range in temperature than waterfront locations c. local topography predict temperature and precipitation d. thinner air less able to hold heat makes climate colder e. sea surface temperature influences air temperature and evaporation rates f. affects temperature, moisture, and storm tracks